PUZZLES
31
2
1. Using exactly four straight lines, without taking your pen off the paper, can you join all nine dots? You are not allowed to retrace your path.
4. Using only one straight line, can you turn this into nine fifty?
10 10 10
2. How many hexagon-type shapes, in total, can you find in this puzzle? Clue: there are more than 45.
5. How can you throw a ball so that it goes a short distance, comes to a total stop, reverses its motion, and then goes the opposite way? You are not allowed to bounce it against anything, hit it with anything, or tie it to anything.
6. What no. comes next to the sequence 16, 21, 26, 26, 12, 5 =?
3. You are given a 10x10x10 cube composed of one thousand 1x1x1 mini-cubes glued together. If you removed the outermost layer, how many mini-cubes would you have removed?
7. After the recent snail racing contest, the four contestants were congratulating each other. Only one snail wore the same number as the position it finished in. Alfred’ s snail wasn’ t painted yellow nor blue, and the snail who wore 3, which was painted red, beat the snail who came in third. Arthur’ s snail beat Anne’ s snail, whereas Alice’ s snail beat the snail who wore 1. The snail painted green, Alice’ s, came second and the snail painted blue wore number 4. Anne’ s snail wore number 1. Can you work out who’ s snail finished where, its number and the colour it was painted?
WINSPIRE: Empowering youth | February, 2017